docs: def multi_option(*param_decls, **attrs):
      """modify help text and indicate option is permitted multiple times
  
      :param param_decls:
      :param attrs:
      :return:
  
      """
      attrhelp = attrs.get('help', None)
      if attrhelp is not None:
          newhelp = attrhelp + " (multiple occurrence permitted)"
          attrs['help'] = newhelp
      attrs['multiple'] = True
      return click.option(*param_decls, **attrs)